Use of heterogeneous catalysts in methylic biodiesel production induced by microwave irradiation

Quimica nova

Kuhnen, Carlos Alberto¹  Parizotto, Carlos Adriano²  Dall'Oglio, Evandro L.²  Oliveira, Pedro Tiago de Jesus²  Vasconcelos, Leonardo Gomes de²  Sousa Jr, Paulo T. de² 

[1] Universidade Federal de Santa Catarina, Florianópolis, Brasil;Universidade Federal do Mato Grosso, Cuiabá, Brasil

关键词: heterogeneous catalysts;    transesterification;    microwave irradiation.;   

DOI  :  10.5935/0100-4042.20140081

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The effect of different heterogeneous catalysts on the microwave-assisted transesterification of sunflower oil for the production of methylic biodiesel in a monomode microwave reactor is described. The experiments were carried out at 70 ºC with a 16:1 methanolsunflower oil molar ratio and different heterogeneous basic and acidic catalysts. The results showed that the microwave-heated reactions occur up to four times faster than those carried out with conventional heating. The reactions were performed with 24 catalysts; pure calcium oxide (CaO) and potassium carbonate, either pure or supported by alumina (K2CO3/Al2O3), were the most efficient catalysts.

【 授权许可】

CC BY